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testHelper.js
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testHelper.js
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import chai from 'chai';
import dirtyChai from 'dirty-chai';
import hook from 'css-modules-require-hook';
import Enzyme from 'enzyme';
import Adapter from 'enzyme-adapter-react-16';
Enzyme.configure({ adapter: new Adapter() });
process.env.NODE_ENV = 'test';
hook({
generateScopedName: '[name]__[local]___[hash:base64:5]',
});
const { JSDOM } = require('jsdom');
const jsdom = new JSDOM('<!doctype html><html><body></body></html>');
const { window } = jsdom;
function copyProps(src, target) {
const props = Object.getOwnPropertyNames(src)
.filter(prop => typeof target[prop] === 'undefined')
.reduce(
(result, prop) => ({
...result,
[prop]: Object.getOwnPropertyDescriptor(src, prop),
}),
{}
);
Object.defineProperties(target, props);
}
global.window = window;
global.document = window.document;
global.navigator = {
userAgent: 'node.js',
};
copyProps(window, global);
const exposedProperties = ['window', 'navigator', 'document'];
Object.keys(document.defaultView).forEach(property => {
if (typeof global[property] === 'undefined') {
exposedProperties.push(property);
global[property] = document.defaultView[property];
}
});
// chaiEnzyme needs to be initialised here, so that canUseDOM is set
// to true when react-dom initialises (which chai-enzyme depends upon)
const chaiEnzyme = require('chai-enzyme');
chai.use(dirtyChai);
chai.use(chaiEnzyme());